What's the name of the first line of the Aerial Forest Trail?

The first route of the natural barrier plank road aerial forest trail was named "Natural barrier plank road". The aerial forest is located in the deep mountain canyon in Zhashui County, Yan 'an, Shaanxi Province, and is built on a cliff. It is very high and the environment is quite steep, so it is called the natural barrier plank road. Forest trail refers to a belt-shaped leisure space with different natural scenery and historical and cultural characteristics, which passes through important mountains and forest areas. It is more than 500 kilometers long and is mainly used for people to experience nature in depth in the form of walking.